Machine learning is beginning to be used in the games industry both as part of games and as part of the development process for games.
1. For example, a game currently in development called Hello Neighbor 2 is using machine learning to create an opponent for the player that learns from the actions of all of the game's players.
https://screenrant.com/hello-neighbor-2-gameplay-ai-trailer-mr-peterson/
https://www.youtube.com/watch?v=Hlj2SyGnlvc
2. Google has also found that neural networks can be used in place of human playtesters.
https://ai.googleblog.com/2021/03/leveraging-machine-learning-for-game.html
3. Below are some articles further explaining examples and challenges with using machine learning in video games.
https://www.theverge.com/2019/3/6/18222203/video-game-ai-future-procedural-generation-deep-learning
https://www.caltech.edu/about/news/neural-networks-playing-video-games-teach-us-about-our-own-brains
https://futurism.com/the-byte/browser-game-opponents-neural-networks